Brake apparatus for vehicles.



No. 632,!46. Patented Aug. 29, I899. L. REMQNDY &. P. HALLOT. BRAKEAPPARATUS FOR VEHICLES.

(Application filed June 24, 1898.)

3 Sheets-Shoot I,

(No Model.)

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No. 632,l46. Patented Aug. 29,1899. L. RE'MDNDY & P. HALLOT.

BRAKE APPARATUS FOR VEHICLES.

(Application filed June 24, 1898.)

(No Model.) 3 Sheets-Sheet 2.

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No. 632,146. L Patented Aug. 29, I899. L. mmounv & P. HALLOT.

BRAKE APPARATUS FOR VEHIG LES.

(Application filed June 24, 1898;)

{Sheets-Sheet 3 (No Model.)

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NITED STATES PATENT FFICE.

' LEON REMoNDY, OF VINOENNES, AND PAUL HALLOT, OF VANNES,

FRANCE.

BRAKE APPARATUS FOR VEHICLES.

SPECIFICATION forming part of Letters Patent No. 632,146, dated. August29, 1899. Application filed June 24,1898. s al No. 684,413. (No model.)

To aZZ whom it may concern/.-

Be it known that we, LEON RaMoNnY, of

16 Rue du Progres,Vincennes, and PAUL HAL- LOT, of 47 Rue Sen,Vannes,France, artillery lieutenants, citizens of France, have invented certainnew and useful Improvements in or Relating to Brake Apparatus for Roadand ically operating the brakes of a wheeled vehicle through the mediumof the forward momentum of the latter, relieving the draft strain ondraft devices, whereby the brakes are automatically applied with agraduallyincreasing force proportionate to the momentum of the entirevehicle as it travels forward. To accomplish this object, our inventioninvolves the features of construction, the combination or arrangement ofparts, and the principles of operation hereinafter described andclaimed, reference being made to the accompanying drawings, in whichFigure l is a detail sectional side elevation of sufficient of a wheeledvehicle and the brake mechanism to enable our invention to beunderstood. Fig. 2 is a diagrammatical plan view hereinafter explained.Fig. 3 is a detail sectional side elevation showing the mannor ofapplying our invention to existing vehicles. Fig. 4. is a similar viewshowing another manner of applying our invention to existing vehicles;and Fig. 5 is a similar view showing the draft mechanism and cabletightening and loosening devices at the front of a road-vehicle, thebrake, the brake-operating the wheel, and also around a pulley 6, havinga suitable connection, such as a rod 3, with the brake 5 or thebrake-beam, as the case may be. The cable is fastened at one end,

as at 2, to'a fixed part of the vehicle, and after looping or passingaround the pulley or sheave It is shown as connected to a draft-cable 4forming part of the draft devices, so that the draft-bar in factsustains the entire traction strain or pull which is transmitted to thevehicle through the spring 8. The pulley or sheave 5 is connected by aflexible connection 12, such as a chain, with the short arm of a lever10, pivoted between its ends, as at 10, to a part of the vehicle, sothat the lever is within convenient reach of and can be actuated by thedriver or attendant. The long arm of the lever 10 is adapted to engageand be held or locked by a spring-pressed ratchetplate 11.

While the power required to move the vehicle exceeds the resilient poweror expansive force of the power-spring 8, the latter is compressed andthe brakes remain off; but the instant the momentum or speed of thevehicle exceeds the speed of the draft-animals or other medium thepower-spring expands and acting against the collar 5 moves the draft-bar4 rearward, thereby pulling on the end 3 of the cable, so that thelatter draws the pulley or sheave 6 forward to automatically apply thebrake to an extent just sufficient to restore the equilibrium which wasdestroyed. In other words, the brake is applied withgradually-increasing force in proportion to the momentum of the vehicle.

Through the medium of the lever 10, ratchet-plate 11, connection 12, andpulley or sheave 5 the cable may be tightened to apply the brake or tomore or less regulate the power of the brake. A spring 9, suitablyapplied, serves to return the brake to normal position.

In Fig. 2 the vehicle is designed to have a pivoted front axle, like anordinary carriage,

in which event the flexible draft-cable 4:", connected with thedraft-bar 4, passes between centrally-arranged guide-rollers 7 to permitthe front axle to turn, while preserving operative connection of thedraft-cable with the draft-bar. The parts of our invention not shown inFig. 2, which is merely a diagram, will be the same as described withreference to Fig. 1.

Our invention may be applied to existing carriages having ordinarybrakes, as represented in the modifications, Fig. 3 and 4. In Fig. 3 thenumeral 13 indicates a lever-arm secured to the ordinary transverseshaft 13, havinga pendent lever 14 carrying the brake or beam 18,pressed toward the vehicle-wheel by a spring 9. The lever-arm 13 isconnected by a chain 1% with the usual longitudinal brake-rod 12,adapted to be operated by the driver or attendant. The brake 18 isconnected by a rod 3 with the pulley or sheave 6, which is engaged withthe cable 1, all the same as described with reference to Fig. 1. In Fig.4 the ordinary brake shoe or beam 19 is supported by a lever 20 having aboss 15 loosely mounted on a transverse shaft 16. The lever 20 ispressed toward the vehiclewheel by spring 9 and the boss 15 has a slot15, through which a set-screw 17 passes into the shaft 16. The brake 19is connected by rod 3" with the pulley or sheave 6, engaged with thecable 1, all the same as described with reference to Fig. 1.

In the modification shown in Fig. 5 the spring for applying the brake,similar to the spring 8, Fig. 1, is in the form of a leafspring 8,secured at one end 8 and constantly pressing upward against the shortarm of a pedal-lever 20, pivoted near its center, as at 21. The shortarm of the pedal-lever is connected to a connection 19, running back toand controlling a brake-operating cable the same as the cable 1 inFig. 1. The draft-bar at also connects at its rear end with the shortarm of the pedal-lever through the medium of a chain 4, passing aroundthe guide pulley or sheave 22, and this draft-bar is attached at itsfront end to a lever-arm 23, secured to a transverse shaft 24, having alever-arm 25, to which the draft traces or devices 18 are connected by achain 26. The principle or mode of operation is substantially the sameas described with reference to Fig. 1. The instant the draft strain onthe traces or draft devices 18 ceases the spring 8 is released and actsto raise the short arm of the pedal-lever 20, thereby pulling theconnection 19 to actuate the brake-operating cable, which latter is thesame as the cable 1, Fig. l. The long arm of the pedal-lever can bedepressed by the driver or attendant to apply the brake, and the levercan be held or locked in any desired position by springpressedratchet-plates 27 and 28 to regulate the power of the brake.

It will be observed that while our improved brake-operating mechanism isautomatic in its action, as explained, it is also under control of thedriver or attendant through the medium of the levers 10 or 20, as beforeexplained.

Having thus described our invention, what cable and exerting no pullthereupon under the draft strain, and a power device engaged with thedraft-bar, held inactive by the draft strain and released to move thedraft-bar rearward and operate the cable to apply the brake, by themomentum of the vehicle relieving the draft strain, substantially as andfor the purposes described.

2. The combination with a vehicle-brake, and a rotating hub, of abrake-operating cable secured at one end and passing around said hub, adraft-bar connected with the other end of said cable, a connectionbetween the latter and the brake, and a yielding power device moving thevehicle through the draftbar, held inactive by the draft strain to holdthe brake off and released by the momentum of the vehicle relieving thedraft strain on the vehicle, to draw or pull the cable around the huband apply the brake with gradually-increasing force, proportionate tothe momentum of the vehicle, substantially as described.

3. The combination with a vehicle-brake, and a rotating hub, of abrake-operating cable secured at one end, and looped around said hub, adraft-bar connected with the other end of said cable, a connectionbetween onelooped part of the cable and the brake, a yieldingpowerdevice acting on the draft-bar, held by the draft strain to holdthe brake off and released by the momentum of the-vehicle relieving thedraft strain on the draft-bar, to draw or pull the cable and apply thebrake with gradually-increasing force, proportionate to the momentum ofthe vehicle, and a pivoted lever connected with another looped part ofsaid cable and under control of the attendant or driver, substantiallyas described.

4:. The combination with a vehicle-brake, of a brake-operating cablesecured at one end, a draft-bar connected with the other end of thecable, a connection between the latter and the brake, and a power-springengaged with said draft-bar, held under compression by the draft strainand released by the momentum of the vehicle relieving the draft strain,to draw or pull the cable and apply the brake with agradually-increasing force, proportionate to the momentum of thevehicle, substantially as described.

5. The combination with a vehicle-brake, and a rotating hub, of abrake-operating cable secured at one end, and looped around said hub, adraft-bar connected with the other end of the cable, a connectionbetween one looped part of the cable and the brake, a power-springengaged with said draft-bar, held under tension by the draft strain andre leased by the moniemtum of the vehicle relieving the draft strain,and a pivoted lever connected with another looped part of said cable andunder control of the attendant or 5 driver, substantially as described.

6. The combination with a vehicle-brake,

of a brake-operating cable secured at one end,

a draft-bar connected with the other end of the cable, opposite pulleysor sheaves about 10 which said cable is looped, a connection between onepulley or sheave and the brake, a pivoted lever connected with the otherpulley or sheave and actuated by the attendant or driver to draw or pullthe cable, and a power- 15 spring engaged with the draft-bar, held undertension by the draft strain and released to operate the cable and applythe brake, by the momentum of the vehicle relieving the draft strain,substantially as described.

In testimony whereof we have hereunto set 2o

